public class Homolosine extends MapProjection
Modifier and Type | Class and Description |
---|---|
static class |
Homolosine.Provider
The math transform
provider for the Homolosine projection (not part of the EPSG database).
|
MapProjection.AbstractProvider
centralMeridian, en0, en1, en2, en3, en4, excentricity, excentricitySquared, falseEasting, falseNorthing, globalScale, invertible, isSpherical, latitudeOfOrigin, LOGGER, scaleFactor, semiMajor, semiMinor, SKIP_SANITY_CHECKS
SINGLE_LINE
Modifier | Constructor and Description |
---|---|
protected |
Homolosine(ParameterDescriptorGroup descriptors,
ParameterValueGroup parameters)
Constructs a new map projection from the supplied parameters.
|
Modifier and Type | Method and Description |
---|---|
protected double |
computeOffset()
Computes the Northing difference between Sinusoidal and Mollweide at the threshold latitude.
|
ParameterDescriptorGroup |
getParameterDescriptors()
Returns the parameter descriptors for this map projection.
|
protected Point2D |
inverseTransformNormalized(double x,
double y,
Point2D ptDst)
Transforms the specified (x,y) coordinates and stores the result in
ptDst . |
protected Point2D |
transformNormalized(double lam,
double phi,
Point2D ptDst)
Transforms the specified (λ,φ) coordinates (units in
radians) and stores the result in
ptDst (linear distance on a unit sphere). |
protected double |
wrapLatitude(double phi)
Wraps latitude angles around.
|
protected double |
wrapLongitude(double lam)
Wraps longitude angles around.
|
checkReciprocal, equals, getParameterValues, getSourceDimensions, getTargetDimensions, getToleranceForAssertions, hashCode, inv_mlfn, inverse, mlfn, orthodromicDistance, resetWarnings, transform, transform, transform
createTransformedShape, derivative, derivative, ensureNonNull, formatWKT, getName, isIdentity, needCopy, normalizeAngle, rollLongitude, transform, transform, transform
cleanupThreadLocals, toString, toWKT, toWKT, toWKT, toWKT
createTransformedShape, derivative
derivative, isIdentity, toWKT, transform, transform, transform
protected Homolosine(ParameterDescriptorGroup descriptors, ParameterValueGroup parameters) throws ParameterNotFoundException
parameters
- The parameter values in standard units.ParameterNotFoundException
- if a mandatory parameter is missing.public ParameterDescriptorGroup getParameterDescriptors()
MapProjection.getParameterValues()
, as well as arguments checking.getParameterDescriptors
in class MapProjection
null
.OperationMethod.getParameters()
protected double computeOffset() throws ProjectionException
ProjectionException
protected double wrapLongitude(double lam) throws ProjectionException
lam
- A longitude angle in radians .ProjectionException
protected double wrapLatitude(double phi) throws ProjectionException
phi
- A latitude angle in radians.ProjectionException
protected Point2D transformNormalized(double lam, double phi, Point2D ptDst) throws ProjectionException
ptDst
(linear distance on a unit sphere).transformNormalized
in class MapProjection
lam
- The longitude of the coordinate, in radians.phi
- The latitude of the coordinate, in radians.ptDst
- the specified coordinate point that stores the result of transforming ptSrc
, or null
. Ordinates will be in a dimensionless unit, as a linear distance
on a unit sphere or ellipse.lambda
, phi
) and storing the
result in ptDst
.ProjectionException
- if the point can't be transformed.protected Point2D inverseTransformNormalized(double x, double y, Point2D ptDst) throws ProjectionException
ptDst
.inverseTransformNormalized
in class MapProjection
x
- The easting of the coordinate, linear distance on a unit sphere or ellipse.y
- The northing of the coordinate, linear distance on a unit sphere or ellipse.ptDst
- the specified coordinate point that stores the result of transforming ptSrc
, or null
. Ordinates will be in radians.x
, y
and storing the result
in ptDst
.ProjectionException
- if the point can't be transformed.Copyright © 1996–2021 Geotools. All rights reserved.